He was on the grand ballroom stage posing for a demo by Michael Shane Neal. I was far back in the audience watching the demo, looking at a video image projected on a big screen. Above is a 30-minute gouache sketch I did from my seat.

Mr. Neal lit him with a two-source lighting scheme inspired by Anders Zorn (Swedish, 1860-1920). The lighting scheme produces a shadow core in the center of the form and often puts the eyes in shadow.

In the case of this Zorn, those dark accents in the face float in the middle of a sea of creamy white, the reverse of the usual tonal scheme of a portrait.